Respuesta :

0090086

Answer:

1) 10

Basic facts:

we can tell a right angle if there is a small square drawn where the angle measuring should be done

Step-by-step explanation:

Main step

90-60=30

30=3x

divide by 3

10 =x

the value of x is 10

so option 1

0hdd

Answer:

10

Step-by-step explanation:

we can see there is a right angle

right angles are 90 degrees

90-60=30

30/3=10